Binance will increase the collateral ratio for ASTER and ETC from 50% to 60% across Cross Margin Borrow, Transfer-out, and Portfolio Margin modes effective October 16, 2026 at 06:00 UTC. The update also applies to Tiered Collateral Ratio settings for Portfolio Margin Pro and is expected to complete within approximately 30 minutes. The change affects borrowing capacity and transfer limits under Cross Margin, while altering the Unified Maintenance Margin Ratio (uniMMR) under Portfolio Margin. Users are advised to monitor their uniMMR closely to mitigate potential liquidation risks resulting from the adjusted collateral requirements.